III.

(1) most                               (6) has

(2) next                                (7) be

(3) name                              (8) on

(4) bell                                 (9) is

(5) was                                 (10) means

IV. 

1. It's very important to leep the environment clean.

2. People recycle old car tired to make shoes and sandals.

3. I haven't spoken to Mr.Quang for three months.

4. Trang wed to type are fast. 

5. My grandfather asked me to turn down the radio for her

III.Complete the passage with the most suitable words

1.most 

2.next

3.name

4.bell

5.was

6.keeps

7.be

8. on

9.is

10.means

IV, Rewrite the sentences,not to change the meaning

1. It's important to keep the environment clean.

2.People recycle old car tires to make shoes and sandals.

3.I haven't spoken to Mr.Quang for 3 months.

4.Trang used to type fastly but now she doesn't.

5.My grandfather asked me to turn down the radio for him.